<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="<%=request.getContextPath()%>/jquery-1.8.2.js"></script>
<script type="text/javascript">
	 $(function(){
		 $("#btn").click(function(){
				$.post(
					"data/json",
					{},
					function(data){
						console.log(data);
					},
					"json"
				)
			}) 
	 })
</script>
</head>
<body>
	<button id="btn">获取JSON</button>
</body>
</html>